81206918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1901}}^1$

素因数の和:2000

約数の個数: 32

約数和(自身を含む): 138039552

約数和(自身を除く): 56832634

約数列:

[1, 2, 13, 26, 31, 53, 62, 106, 403, 689, 806, 1378, 1643, 1901, 3286, 3802, 21359, 24713, 42718, 49426, 58931, 100753, 117862, 201506, 766103, 1309789, 1532206, 2619578, 3123343, 6246686, 40603459, 81206918]

約数ペア:

[(1, 81206918), (2, 40603459), (13, 6246686), (26, 3123343), (31, 2619578), (53, 1532206), (62, 1309789), (106, 766103), (403, 201506), (689, 117862), (806, 100753), (1378, 58931), (1643, 49426), (1901, 42718), (3286, 24713), (3802, 21359)]